ZOOM 900 IAdvanced Multi-Effecis Processor
Thank you for selecting the ZOOM 9001 Advanced Multi- Effects Processor
(hereafter callcd "9001").
The 9001 is a sophisticated multi-effect device with the following fcaturcs and
functions:

Many innovative, high-quality effects
The 9001 offers versatile reverb effects on a par with much more expensive
equipment, plus many other kinds of unique and useful sound effects. There are a total
of 20 different effects with various parameters, and up to 40 programs using these
effects can be stored in the memory of the unit.

Wide range of uses from recording to mix-down
The 9001 is ideal for users who want to set up their own home recording studio. Its
effects are pcrfcct for many sounds and instruments, such as synthesizers, drums,
bass, guitar or vocals. But the usefulness of the 9001 is not limited to the actual
recording process. It comes in equally handy when doing mix-downs on a multi-track
recorder and in many other home-recording applications.

Easy operation
The number of adjustable parameters has been purposely limitcd to truly essential and
useful points. Many effcct settings and values are displayed by intuitive graphical
representations or bar graphs, making the unit a snap to use even for beginners.

Remote operation with foot controller
By using the optional Foot Controller FCO1, program selection and cffect on/off
switching can be controlled by foot.
Please take the time to read this manual carefully, in order to get the most out of
your 9001 and to ensure optimum performance ;nd reliability.

Safety Precautions
Please observe the following safety lips and precautions to ensure hazard-free use of
the 9001.

Power requirements
The 9001 can be powered by six IEC R6 (size AA) batteries or the optional AC
adapter AD-0001. Do not use any other kind of AC adapter to prevent malfunction
and safety hazards.
When wishing to use the 9001 on AC power in an area with a different line voltage,
please consult your local ZOOM distributor about acquiring a proper AC adapter.

Environment
Avoid using your 9001 in environments where it will be exposed to:

Handling
Since the 9001 is a precision electronic device, avoid applying excessive force to the
switches and buttons. Also take care not to drop the unit, and do not subject it to
shock or excessive pressure.

Alterations
Never open the case of the 9001 or attempt to modify the product in any way since
this can result in damage.

Connecting cables and input and output jacks
You should always turn off the power to the 9001 and all other equipment before
connecting or disconnecting any cables. Also make sure to disconnect all cables and
the AC power cord before moving the 9001.

Notes on Internal Battery for Memory Back Up
Caution!
The 9001 contains a long-life lithium battery (this battery is different from the batteries of
power supply) which maintains h e effect programs stored in the internal memory intact
even when the unit is turned off. With normal use, the battery should last for
approximately 3 years. When the battery has run down , " INlT " will be displayed and
the contents of the memory will be set automatically back to the factory- set status. When
the battery is replaced, the program in the memory will be lost. Before replacing the
battery, record the program data, and then restore the program data after the battery has
been replaced. To avoid possible data loss, contact your local ZOOM dealer and have the
battery replaced by a qualified technician. Do not attempt to replace the battery by
yourself, since installing an improper battery could result in an explosion.

Electrical interference
The 9001 uscs digital circuitry that may cause interfcrence and noise if placed too close to other
electrical cquipmcnt, such as TV sets and radio rcccivcrs. If such problcms occur, movc the
9001 Further away from thc dfccted equipment. Also, whcn fluorescent lights or devices with
built-in motors are in close proximity to tllc unit, the 9001 may not function properly.

Cleaning
Use a soft, dry cloth 10 clcan the 9001. If necessary, slightly moistcn thc cloth. Do no1 use any
abrasive cleansers, waxes, or solvents (such as paint thinner or cleaning alcohol), since these
may dull the fmish or damage the surface.

In case of malfunction
If a problem arises during operation, turn the 9001 off and disconnect all cables. Then contact
your local ZOOM distributor with the following information: model name. scrial number,
symptom, your name, address and phone number.
Keep this manual in a convcnient placc for future rcference.

In this section, you will find a general explanation of the functions and operation of
the 9001, as well as an explanation of special terms and the organization of this
manual. If you are already familiar with multi-effect processors, you may quickly scan
this section.

What Is the 9001 ?
The 9001 is called a multi-effect processor because it lets you change sound in many
ways, by applying electronically produced effects. Using a source signal for example
from a tape recorder or a musical instrument, you can add reverberation or chorus
effects to produce a more natural sound, or you can drastically alter the original sound
in many creative ways to achieve a desired result.

Effects and categories
Thc 9001 incorporates 20 different effects. According to the intended sound source
and application, these effects are grouped into 8 categories. The table below lists the 8
categories with their respective effects. Note that the category and effect designations
often use the names of musical instruments, but this does not mean that their use is
restricted to these instrumcn&. For example, cvcn when processing the sound of a
piano, it is not mandatory that you use the cffect catcgory PIANO. This catcgory is of
course suitable for piano sounds, but another catcgory may produce the result that you
want. The effcct STRINGS in the catcgory KEYBOARD, for example, works very
well to create a clear backing sound from an elcctric guitar. Feel free to experiment,
according to your very own preferences and musical tastes.
Effect
I =EL GUITAR
2 GUT GUITAR
l BASS
2 SLAP BASS
l VOCAL l

2 VOCAL 2
3 HARMONY
4 ROBOT
l WAVE

2 TEST TONE OSCILLATOR

I

Categories and Effects

Parameters
Each effect is made up o f several elements callcd parameters. Most of lhese
parameters can be edited, in order to makc thc cffcct do exactly what you want. The
9001 storcs an effect as the sum of its parameter scttings.

Program
After you have cdited the various parameters of an cffect, and adjusted the desired
output level, you can store the result as a program. The 9001 also comes with 40
predefined programs already stored in its memory. During a performance or a
recording, you can use the 9001 by calling up the desired programs in the sequence
you want. The preset programs stored in memory can be changed by t.hc user.

Bank number and program number
The programs in the 900 1 are specified by a two-digit number. The first digit indicates
the bank number and the second digit the program number. There are ten banks from
0 to 9, and four program numbers from l to 4.
Mode
The 9001 has three different operation modes, as described below.
Play mode
This is thc basic operation mode in which you use the effects of the 9001. After
power-on, this modc is automatically activated.
Edit mode
In this modc, you choose the effect to be used in a program and you can edit the
various effect paramelers.
Utility made
In this inode, you can pcrform various system functions such as adjusting the
sensitivity for c c r ~ i nsound sources or restoring the 9001 to the factory settings.
Conventions used in this manual
This manual uses the following icons to indicate special sections.

IHintl
Practical hints or suggestions for optimum usage.
[Note]
Warnings or advice, especially about points that may be of
impor&ce to users who are new to effcct processors.

rnNT

[One-point advice]
Basic information on specific topics which will be useful in
working with the 9001.

Front Panel

ADVANCED MULTI-EFFECTSPROCESSOR

(1) STORE key

This key serves to store an editcd program in memory.

(2) EDlTlCANCEL key
This key serves to put thk 9001 in the Edit mode. Prcssing the key also lcts you cancel
an operation such as store.
(3) UTILITY (TYPE) key
This key serves to put the 9001 in the Utility mode. In Edit mode, the key is used to
select effccts.

(4) BANK UPIDOWN key

In Play mode, thcse keys scrve to select the dcsired bank from banks 0 to 9. A
program is selccted by using thcsc keys in combination with thc PROGRAM keys.
In Edit mode, thesc keys servc to sclect the paramctcr to be editcd.

(5) PROGRAM 1 - 4 keys
In Play mode, these keys scrvc to select the dcsired program in the currently
selected bank.
In Edit mode, thesc keys servc to select the paramctcr to be edited.
(6) EFFECT ON/OFF key
In Play mode, this key serves to temporarily turn off thc effect. Pressing the key
once more turns the effect on again.
In Edit mode, the key serves to the compare the sound of thc original program
(before editing) with the current sound effect settings.
(7) VALUE +/- keys

In Play mode, lhcse keys serve to adjust thc output lcvel of thc program.
In Edit mode, these keys scrve to cdit a parametcr.
In Utility mode, these keys scrve to sct the input sensitivity lcvcl for various sound
s0UTces.
(8) Display

Shows information such as thc currently sclcctcd program and cfl'cct, bank number,
program numbcr, ctc.
(9) SIGNAL indicator
Indicates the levcl of thc signal currently input to thc 9001.

When the indicator is out, no signal is being input.
When the indicator is lit in green, a low-level signal is being input.
When the indicator is lit in yellow, a signal is being input a t optimum level.
When the indicator is lit in red, the level of' the input signal is too high, causing
distortion in the input circuitry of the 9001.
Tf the battery voltage is

low, the SIGNAL indicator will start to flash in red.
When this happens, replace the batteries as soon as possible. l'he unit can be
operated continuously for about 3 hours on a set of fresh manganese batteries
and for about 6 hours on a set of fresh alkaline batteries. When closing the
battery compartment cover, first insert the protruding lip into the
corresponding slot and then firmly lock the rear of the cover.

Rear Panel

(1) INPUT jacks (R, LIMONO)
The source signal from a musical instrument, tape recorder, CD player or othcr
equipment is connected here. If the signal is in mono, use the jack marked L/MONO.
For stereo signals, use both jacks. If the signal output cable uses RCA-type phono
jacks, an adapter for conversion to 1/4"phone plugs is required.
(2) OUTPUT jacks (L/R)
The output signal from the 9001 is supplied at these jacks, which can be connected to
a set of speakers with built-in amplifier or to other audio equipment.

(3) DC7.5 V jack
When the optional AC adapter AD-0001 is used to power the 9001, the cable from the
adapter is connected here.
(4) POWER switch
Serves to turn the unit on and off.

The 9001 can be connected in many ways, depending on the sound source and the
intended application. A few representative examples are described below.

Connection to a mixer (Example l )
When wishing to apply effects to several instruments or to various tracks of a multitrack recorder, use the SEND/RETURN jacks of a mixer to connect the 9001. For a
stereo setup, connect the SEND jacks to the L and R INPUT jacks of the 9001, and
connect the L and R OUTPUT jacks of the 9001 to the RETURN jacks of the mixer.
For a mono setup, use the L INPUT and L OUTPUT jacks of the 9001.

When using the 9001 as described above in the SENDlRETUHN loop of a mixer,
it is advisable to use only effects in the categories STUDIO and DRUMS and to
set the DIR parameter (direct sound mix onloff) to OFF. Since effects in other
categories do not have the option of turning the direct sound off, their use in
this type of application is not recommended. For details on parameters, please
refer to page 22.

Connection to a synthesizer or rhythm machine
(Example 2)
When using the 9001 with an electronic instrument that has stereo output, such as a
synthesizer or a rhythm machine, connect the output from the instrument to the L and
R INPUT jacks of the 9001, and connect thc L and R OUTPUT jacks of thc 9001 to
the inputs of the audio component or other playback equipment.

Electronic instrument

9001

Playback equipment

Connection to a guitar or bass guitar (Example 3)
When using the 9001 with an instrument that has mono output, such as an electric
guitar, an acoustic guitar with pickup, or a bass guitar, connect the output from the
instrument to the L/MONO INPUT jack of the 9001, and connect the L OUTPUT jack
of the 9001 to the amplifier. In this case, stereo effects such as reverb will be in mono.
When wishing to use the stcreo capabilities of the 9001, connect the L and R
OUTPUT jacks to two amplifiers.

Amplifier
(L or MONO)

Connection to a microphone (Example 4)
To use the 9001 with a microphone, connect the output from the microphone to the
L/MONO INPUT jack of the 9001, and connect the L OUTPUT jack of the 9001 to
the amplifier. In this case, stcreo effects such as reverb will be in mono. When
wishing to use the stereo capabilities of the 9001, connect the L and R OUTPUT jacks
to two amplifiers.
Conventional dynamic microphones can be connected directly to the 9001, but
capacitor microphones are not supported. Since the output level from microphone
varies considerably depending on the model, be sure to adjust h e input sensitivity of
the 9001 to match the microphone in use.

I OUTPUT L

I

INPUT UMONO

9001

Playback equipment

Connection to a CD player or cassette deck (Example 5)
Connect the line output jacks of the CD player or cassette deck to the L and R INPUT
jacks of the 9001, and connect the L and R OUTPUT jacks of the 9001 to the AUX
inputs of the audio component or other playback equipment. This is useful for
example to create your own tapes by adding reverb or other effects to conventional
music sources.

7 - i

LINE OUT L

v

l OUTPUT R

LINE OUT R

00
no

OUTPUT L

INPUT R

-

8Q8

Qooaa~~

on=

9001

Cassette deck

a85
Playback equipment

Private Practice setup (Example 6)
This is the "private practice" setup, to connect a mic into one input and an instrument
(like a guitar or keyboard) into the other, with headphones connected directly. It is an
ideal way to set up the 9001 for your private practice. Singing and playing
simultaneously through the 9001, especially through headphones, is a big pleasure!

Microphone
INPUT

input level Adjustment
Before starting to use the 9001, you should adjust the input sensitivity to match the level
of the sound source. This will ensure optimum sound quality with a minimum of noise.
When the 9001 has been properly connected to the sound source and the
playback equipment, turn on the power in the following order: -+ Sound
source + 9001 -+ playback equipment
I f the above sequence is not observed, turn-on thumps may damage the
speakers. To turn the equipment off, reverse the above sequence.

The Play mode display appears.
STUDIO DRUMS KEYB. PIANO

mumlc

TAR BASS VOCAL SOUND

l

The display shown above is only an example. In actual use, the display will be
different depending on the status of the 9 0 1 before it was last turned off.
I n other modes, an "E" o r "U" is shown in the left section of the display. If this
indication is not shown, the unit is in the Play mode.

Press the UTILITY (TYPE) key.

This activates the Utility mode. A "U" appears in the left section of the display.
ACWSTlC
SNOlO DRUMS KEYB. PIANO GUITAR BASS VOCAL SOUND

Use the VALUE +/- keys to adjust the input sensitivity of the 9001.

Set the output level of the sound source to the normal value. Then adjust the input
sensitivity of the 9001 with the VALUE +/- keys so that the SIGNAL indicator lights
up in yellow during input signal peaks. The input sensitivity can be set in five steps,
from 1 to 5.
When the adjustment is completed, press the UTILITY key several times until
the unit reverts to the initial display (no "U" shown).

The 9001 is now again in Play mode.

The Play mode is the basic operation mode of the 9001. In this mode, you can

perform the following functions:
Selecting a program
Turning the effect on or off
Temporarily adjusting the output level

Reading the Display in Play Mode
The following information appears on the display in Play mode:

(1) Category
The category to which the efrect belongs is indicated at the " h"mark by an easy-tounderstand icon. This lets you see at a glance for which kind of application the effect
is suitable.

(2) Effect
The name of the effect used by the currently selected program.
(3) Bank number
The number of the currently selected bank.
(4) Program number
The number of the currently selected program.

(5) Bar graph
Graphic representation of the output level of the currently selected program.

Selecting a Program
Use the BANK UPiDOWN keys to select the bank number.

The programs of the 9001 are grouped into ten banks numbered from 0 10 9. Each
bank contains four programs. When the BANK UP/DOWN keys are used to select a
bank number, the number flashes.
STUMO DRUMS KEYB. PLAN0

AGyzC

STUDIO DRUMS KEYB. PIANO ~~~~C

BASS VOCAL SOUND

BASS VOCAL SOUND

Press BANK UP Key

When wishing to change bank numbers quickly, keep the BANK UP or DOWN
key depressed.

BANK UP Key

BANK DOWN Key

Selecting Bank Numbers With BANK UPIDOWN Keys

Simply pressing the BANK UPIDOWN keys does not suffice to change the
program. The program is only selected after you have pressed one of the
PROGRAM l 4 keys.

-

-

Use the PROGRAM 1 4 keys to select the program.
The bank number stops flashing and the newly selected program number is shown on
the display. The name of the eiTect used by the program, its category, and the output
level are also shown.
STUDIO DRUMS KEYB. PIANO

BASS VOCAL SOUND

STUDIO DRUMS KEYB. PIANO IICOUm

Press PROGRAM 2 Key

BASS VOCAL SOUND

m

When changing programs within the same bank, there is no need to press the
BANK UPlDOWN keys. To change from program 11 to program 14, for
example, just press the PROGRAM 4 key.

Now that you have learned how to sclect programs, we recommend that you try out
the programs stored in the 9001, to hcar the various effects. For a detailed explanation
of each program, pleasc rcfcr to thc program list starting on page 44.

Temporarily Cancelling an Effect
In the Play mode, you can easily turn an effcct on and off. This is helpful for example
to quickly check thc sound of an effect, or to tune an inslrument.
Press the EFFECT ONIOFF key in the Play mode.
The effect is turned off and the direct sound of the source is heard. The indication
"EFX OFF" flashes on the display. For efrccts in the categories STUDIO and
DRUMS, the direct sound is no1 outpur if lhc p~uamctcrDIR is sct to OFF.
Acousnc
STUDIO DRUMS KEYB. PIANO GUITAR BASS VOCAL SOUND

Press the EFFECT ONIOFF key again.

The previous Play modc condition is restored.

Changing the Output Level
The output levcl is one of the parameters storcd separately for each program. You can
temporarily change the sclting in Play mode.
For effects in the categories STUDIO and DRUMS, the output level setting has
a different meaning than for effects in other categories. I n the categories
STUDIO and DRUMS, only the level of the effect itself is ad,justed. In other
categories, the level of the mixed signal consisting of original sound and effect is
adj ustecl.

Press one of the VALUE +I- keys in Play mode.

The display changes as follows:
STUDIO DRUMS KEYB. RAN0

musnc

QUIT^ BASS VOCAL SOUND

i

The number to the right of "LVL" ("50" in the above example) is the currently
selected output level.
Adjust the level with the VALUE +/- keys.

You can either tap the key repeatcdly or kcep i t depressed. By keeping a key
depressed and at the same pressing the other direction key, the level changes more
rapidly. The setting range is 0 (no sound) to 99 (maximum Icvel).
When the VALUE +/- keys are released, the unit reverts to the previous
condition.
When wishing to only check the output level setting, just tap one of the VALUE
+/- keys once. The level is displayed for some time, and then the unit reverts to
the previous condition.
The output level setting a s described above is only temporary. When a different
program is selected, the preset level of that program will be active. When
wishing to store the output level setting, perform the following steps.

Storing a Program in the Same Bank and Program Number
You can make the level adjustment permanent by storing the program again under the
same number.
Press the STORE key in Play mode.

The unit is set to the Store mode, and thc bank number and program number
indication flashes.
STUDIO DRUMS KEYB. MAN0

ACUUSFIC

GUnm

BASS VOCAL SOUND

r

Press the STORE key once more. The program is stored with the new setting,
and the unit reverts to the Play mode.

Storing a Program in a Different Bank and Program Number
When wishing to use the 9001 as an effecter for example for guitar, bass or
synthesizer, you can store the programs you want to use in a performance in the same
bank and then switch belwecn them simply by pressing PROGRAM 1 - 4 keys.
Proceed as follows to store a program in a different location.
Press the STORE key in Play mode.
The unit is set to the Store mode, and the bank number and program number
indication flashes.
ACOUSTIC
STUDIO DRUMS KEYB. PIANO ~IIITAR BASS VOCAL SOUND

Use the BANK UPIDOWN keys and PROGRAM 1 - 4 keys to select the bank
and program number into which you want to store the program. As opposed to
the Play mode, the program changes also if you only press the BANK
UP/DOWN keys.
When a program is stored in a new location, the program that was previously
stored in that number is overwritten (erased). Take care not to erase a program
that you want to keep. When wishing to restore the factory preset programs,
please refer to the explanation on page 39.

Press the STORE key once more. The program is stored in the new number,
and the unit reverts to the Play mode.
If you wish to cancel the operation without storing the program, press the
EDIT/CANCEL key before pressing the STOKE key the second time. The unit
reverts to the previous condition (Play mode in the above example).

Each effect in the 9001 consists of up to six parameters (parameter 1 through 5 and
output level setting). Changing these parameters is called editing the program. To do
this, the 900 1 must bc in the Edit mode.

Activating the Edit Mode
In the Play mode, select the program you want to edit and then press the
EDIT/CANCEL key.
The 9001 is now in the Edit mode, and an "E"appears in the left section of the display.
ACOUSTK:
S N O l O DRUMS KEYB. PIANO GUITAR BASS VOCAL SOUND

r

'

4

When wishing to return to the Play mode, press the EDIT/CANCEL key once more.

Reading the Display in Edit Mode
The following information appears on the display in Edit modc:
Acwsnc

STUDIO OAUMS KEYB. PIANO GUITAR BASS VOCAL SOUND

(1) Category
The category to which the effect belongs is indicated at the
understand icon.

"4mark by an easy-to-

(2) Parameter
The name of the parameter (parameter 1 - 5 or output level setting) that is currently
selected for editing.

(3) Parameter value
The value of the paramctcr hat is currently selected for cditing.
(4) Bar graph
Graphic representation of the value of the various parameters. The number of the

pararnetcr currently sclcctccl for editing flashes. (Immcdiately after aclivating thc Edit
modc, this is the paramctcr 1.)

Changing a Parameter Value
To edit a program on the 9001, you perform two basic steps:
Select the parameter to be edited.
Change the parameter value.
Use the BANK UPIDOWN keys and PROGRAM 1 - 4 keys to select the
parameter to be edited.
In this mode, the keys function as follows:

(1)
(2)
(3)
(4)
(5)
(6)

BANK DOWN key:
RANK UP key: *
PROGRAM 1 key:
PROGRAM 2 key:
PROGRAM 3 key:
PROGRAM 4 key:

The actual meaning of the parameter depends on the effect. For an explanation,
please refer to the program list starting on page 22. The "output level"
parameter is the same as the output level setting in Play mode.

The name and value of the selected parameter appear on the display, and the number
of the parameter flashes.
ACOUSTlC
STUDIO DRUMS KEYB. PIANO GUITAR BASS VOCAL SOUND

S

*

l

Use the VALUE +/- keys to change the value.
To change the value continuously, keep the VALUE + o r - key depressed. By
keeping a key depressed and at the same pressing the other key, the value
changes more rapidly.

Switching to Another Effect
In the Edit mode, you can select a different cffcct to be used by a program. This is
useful for example whcn creating ncw prorams from scratch.

Press the UTILITY (TYPE) key.
The name of the currently selccted effect is displayed (the indication "TYPE"flashes
in the lower left of the display), and you can select a new effect.
Amsnc

STUMO DRUMS KEYB. PIANO GunAA BASS VOCAL SOUND

I

\

11

I

/

Use the VALUE +/- keys to select an effect.
When a new ef'fect is selected, all currently established parameter settings are
cleared, and the initial settings of the new effect are active.

Comparing an Edited Program to the Original Program
While editing a program, you can use the EFFECT ON/OFF key to compare the
original program to thc current settings.
Whcn thc EFFECT ON/OFF kcy is prcsscd, thc display changes as follows, and thc
unit reverts to the program before cdi ting.
Acousnc

STUDIO DRUMS KEYB. PIANO GUITAR

.MI.aa11

BASS VOCAL SOUND

.UUI m
.d
n . M # U ~ .aaan

PAPlVAl PAPAMZ PAPAM3 PAPAM4 PAPAMS

LEVEL

Pressing the EFFECT ON/OFF key again returns you to the Edit mode.
This function makes it easy to evaluate the influence a certain parameter has on
the sound of an ef'fect.

Storing an Edited Program
Unless you storc the editcd program, thc cffccls of any changes n~adcin the Edit modc
will be only temporary, i.e. thcy will disappear whcn you sclcct another program. In
order not to lose the rcsults of your cditing work, you should gct into the habit of
storing an edited program whcncvcr you fed that you have made an improvcmcnt.
When you have set the parameters to the desired valrres, press the STORE key.

The unit is set to thc Store mode, and thc bank number and program number
indication flashes.
STUDIO DRUMS

ACOUSTIC

KEYB. PIANO GU[rAR BASS VOCAL SOUND

Use the BANK UPIDOWN keys and PROGRAM 1 - 4 keys to select the bank
and program number into which you want to store the program.
If you don't make a selection, the edited program will be stored in the same location as
the original (which will be ovcrwritten).
Press the STORE key once more.

The program is stored, and the unit revcris to thc Play mode. If you press the
EDIT/CANCEL key instead or the STORE key, thc operalion is abortcd and the unit
reverts to the prcvious display condition withoul storing the program.
Even if you have pressed the EDITICANCEL key, the edited program is still
active until you select another program.

In this section, all effects of the 9001 are listed with their parameters. Parameters that
are the same for several effects are explained in detail only the first time they appear.

m

Category I STUDIO

1. REVERB [REVRB]
This is an all-purpose reverberation effect that lends a natural quality to the sound.
Explanation

, Determines the lcvcl of the early reflections.
Detennines whcU~crLhe direct sound (original signal) is mixed
to the effect signal.
Effect Level

sec

Delermines the output level of the revcrbcration effect.

LVL

0.4

0.7

0.9

1.2

1.5

1.8

2.1

2.5

3

4

REVT and sec

INPUT

OUTPUT

m

m

D

Reverb

Reverberation adds the impression of spatial dcpth to the sound. When music is heard for
example in a hall, the sound will be reflected at hard surfaces such as walls etc. The delay
between arrival of the direct sound and arrival of the first reflection (called early reflection) is
called the prc-delay time. The higher the level of the early reflection and the shorter the prcdclay time, the smaller the perceived space becomes.
After thc first reflection at wt~lls,thc sound is furlhcr reflected, with lalcr rcflcctions gradually
decaying in intensity. The level of these reflections is called the reverb lcvcl, and the time until
the reflections cease completely is callcd the reverb time.
The softer the reflecting surfaces arc, the greater is thc high frequency attenuation in the reflected

sound, and the shoner is the reverb time. This is the case for example in a room with soundabsorbing treatment. Rcvcrscly, the harder the reflecting surfaces, the higher is the high- frequency
content of h e rcflcctions and Ihe longer the revcrb time, such as for example in a large hall.

Reverberation Parameters

The effects in the categories STUDIO and DRUMS differ from effects in other
categories in three regards:
1) Stereo input/output is passible by using a stereo input signal and mixing it
before applying the effect.
2) The LVL parameter affects only the effect level, not the direct sound level.
3) The DIR parameter permits turning direct sound mixing on or off. When the
9001 is connected between the sound source and the playback equipment, the
p a r a m e t e r should be set to ON. W h e n t h e 9001 is used in the
SENDfRETURN loop of a mixer, the parameter should be set to OFF.

*

2. ECHO [ECHO]

This a versatile dclay effect offering various options ranging from single dclay to
multi-feedback delay.

Although similar in conccpt, the reflection density of the echo effect is more coarse than that of
the reverberation effect. The intervals between the single echo sounds are determined by the
delay time, and the number of repetitions by the feedback parameter. II the diffusion parameter
is increased, the echo effect becomes more similar to the reverberation cffect.
Level lx-wt

\L

P!

Time

Delay Timo

Echo Parameters
The echo effect allows choosing between three different types of echo:
1) Single delay

Conventional echo with fixcd intervals.

2) Ping-pong delay
Echo alternates betwe.cn the left and right channels.
In a monaural sctup where only the left output is used, the left and right echo
components are mixed, so that the echo is heard at a cycle of 1/2 the delay time.
3) Multi feedback delay
The interval and lefvright position of the echo changes in various ways.
1) Single delay

2) Ping-pong delay

3) Muhi feedback delay

hD-l

L4l-L t j -

&hy +im

.

.

W a yTi

&hy tinr

Echo Types

3. CHORUS [CHORUS]
This is a chorus effect hat can be used with a wide variety of sound sources, from
guitars to synthesizers.
Explanation
-

p---p

Determines the intensity of the chorus effect.

S

Determines the sound character of the chorus effcct.
The higher the value, the stronger Ule low-frequency cut,
resulting in a more transparent sound.

Color

COLOR

Direct Mix

DIR

OF,On

Efl'ect Level

LV L

0-99

Determines whether the direct sound (original signal) is
mixed to the effect signal.

---

L

Determines the oukput lwel of the c h o w effect.

The peculiar soft sound character of the chorus effect is achieved by varying the pitch of the
original sound at a certain regular cycle and adding the resulting signal to the direct sound. The
amount of variation is determined by the depth parameter, and the color parameter determines
the sound quality.

* For information on the relationship between the reverb time value and the actual reverberation time,
please refer to the table on page 22.
INPUT

OUTPUT

D

1L)

IR,

-f

(P,

The gate reverberation effcct is produced by con~rollingthe altenualion of h e reverberation
sound. This artificial-sounding cffect is well known for its use in cutting the revcrberation of
bass or snare drums. The following three attenuation pauems are available.

1) Gate
2) Reverse

3) Room

Reverberation is cut off abruptly, resulting in a particular sound effect.
Reverberation increases, following a curve that is the reverse of the normal
pattern.
' h i s rcvcrberation gives the sonic cffcct of a very small room.
2) Reverse

* For information on the relationship between the reverb time value and the actual reverberation time, please
refer to the table on page 22.
INPUT

D

OUTP

D

The room mode paramctcr determines the type of reverbcration, and the room size parameter
the perceived size of thc room. The room mode paramctcr has three choices:
1) Small Small room with little reverberation.
Large room with comparatively high rcvcrbcration.
Extremely small room with almost n o revcrberalion.

2) Large
3) Tight

~~1

Category III KEYBOARD

1. STRINGS [STRNG]
This effect lends suppleness and body for example to the sound of a string ensemble.
It is a combination of chorus and reverberation type effects.
Parameter

Display

Range

Explanation

1

Chorus Depth

CIIOR

0-10

hterrnincs the chorus modulation inlensity.

2

Chorus Mix

CMIX

0-10

Determines the mixing level of the chorus effect.

3

Reverb Time

REVT

1-10

* Detmiines the reverberation time.

4

Pre Delay Time

PR-D

0-100

5

Reverb Mix

RMIX

0-10

lkterrnines the amount of reverberation mix.

1,

Program Level

LVL

0-99

Determincq the output level.

Determines the prc delay time.

* For information on the relationship between the reverb time value and the actual reverberation time, please
refcr to the table on page 22 .
INPUT

A rotating speaker is a special t y p of speaker for organs, where a separate high-frequency
driver and low- frequency drivcr are mounted in rotating enclosures. The ORGAN effect
simulates the unique sound character that is obtaincd from such a speaker.

When switching between two programs that both use the ORGAN effect, the
simulated speaker rotation rate changes gradually, not abruptly. This allows
you to prepare two programs, one with high and one with low rotation rate, and
switch between the two for a convincing illusion of a real rotating speaker.

3. SOLO [SOLO]
This effect is especially suited to emphasize a prominent solo for example from a
guitar or synthesizer. It is a combination of flanger, echo, reverb, and chorus effects.
Parameter
1

Flanger Depth

Display

Range

FLC

0-10

Explanation
Determines the intensity of the flanger effect.

1

Determines the modulation rate OF the flanger effect.
Determines the delay time in 10-msunits
(example: 100 = 1000 ms).

3

Delay T h e

DLYT

F-I00

4

Delay Mix

DMIX

0-10

Determines h e mixing lcvel of the delayed sound.

5

Reverb Mix

REV

0-10

Determines the mixing level of the reverb sound.

L

Program Level

LVL

0-99

Determines the output level.

INPUT

l

OUTPUT

(Permanently
F

D

=

1R)

The flanger uscs a slightly delayed signal to rnodulatc the original sound. Affected frequencies
are periodically altcrcd to achieve a strong undulating effect.

The chorus component of this effect is permanently set to ON.

141

Category IV

PIANO

1. ACOUSTIC PIANO [PIANO]
This effect provides sonic depth and brilliance that is best suited to the sound of an
acoustic piano. It is a combination of cnhanccr and rcvcrb cfrccts.
Explanation
--

* For information on the relationship belwccn the revcrb time value and h e actual rcvcrbcration timc, pleasc
refer to the table on page 22.
INPUT

OUTPUT

0
IR)

The cnhancer is an cffcct that scrvcs to increase sonic clarity. It removes certain frcquencics
that ~ c n dto blur Lhe sound and emphasizes ~ h high-frcqlrcncy
c
range.
The enhancer in h c 9001 stresses diffcrenl frcquency arcas, depending on the cffea in which it
is used. For ACOUS'I'IC PIANO, it is sct ~os~rcssthc hanirner altack sound.

2. ELECTRIC PIANO [ELPNO]
This effect is a combination of chorus, equalizer, and auto-pan that has proven very
effective for electric piano.
Parameter

Display

Range
I

Explanation
I

-12 - 0 - +l2 Dctcnnines the gain of the high-frequency equalizer.

2

EQ Hi Gain

111-C

3

Chorus Depth

CIIOR

0-10

4

Panning Rate

PAN

0-50

S

Reverb Mix

REV

0-10

Determines the reverberation mixing level.

L

Program Level

LVL

0-99

Determines the output level.

Deternines the intensity of the chorus eKec~
Determines the speed of the panning effect.
A l "O", the panning eKect is disabled.

OUTPUT

I

I
I
.

The auto-panning effect simulates the sound of an electric piano that was popular in he
seventies and eigh~ies.During stereo playback, the sound alternates between the left and right
channcl.
Pan

Auto-Panning
D u r i n g mono playback using only the L OUTI'UT jack, panning has no effect
except for a c h a n g e in modulation.

Category V

ACOUSTIC GUITAR

ACOUSTIC

1. STEEL GUITAR [STEEL]
This effect makes the sound of acoustic guitar more pronounced and clear-cut.

;
Parameter

Display

Explanation

Range

-

Determines the intensity of h e limitcr.

Enhancer Depth

Pitch Shin Mode

I
I

ENH
IWODE

1
1

Determines tllc intensity of the enhancer effect which makcs
the sound of wound strings stand out and lends brilliance to the
sound of single-strand strings.

Thc limiter compresses the sound s o thal it does not exceed a ccrtain level. It clears up the
sound and prolongs sustain.
The pitch shiftcr has a range of oric octavc u p o r down. It crcates a spccial hmnonizh~gchorus
effect. Thc following pitch shift settings can be chosen.

1: - l octavc
2: 5 scrni~ones
3: detune (-)
4:
5:
6:
7:

dctune (+)
+5 semitones
+7 semitones
+l octave

When switching between effects of the category ACOUSTIC GUITAR or BASS,
the sound is not muted when a new program is selected.

The comb filter causes a special effect where frequency peaks alternate with frequency dips,
around a certain reference frequency. By stressing the lowest peak and dip (lowest resonance
frequency) and smoothing other areas, mid-range sounds are accented in a way that resembles
the body resonances of a gut guitar.

1) Conventional comb filter
Gain

2) GUT comb filter
Gain

-i

Lowest resonance frequency

~rquenc~
-4Lowest resonance frequency

~re~uenc~

m

Category V1 BASS

1. BASS [BASS]
This is a combination of limiter, chorus, and reverberation effects, resulting in a rich
bass sound.

I

Parameter

I

Display

I

Explanation

Range

Determines the intensity of the limiter.

0-10

l

Limiter Intensity

LIM

2

EQ Lo Gain

LO-C

-12 - 0 - + l 2 Delermines the gain of the low-frequency equalizer.

EQHi Gain

111-G

-12 - 0 - + l 2 Determines the gain of thc high-frequency equalizer.

4

Chorus Depth

CIIOR

0-10

Determines the intensity of the chorus effect.

5

Reverb Mix

REV

0-10

Delermines the reverbcralion mixing level.

L

Program 1,evel

LVL

0-99

Determines h e output level.

3
I

INPUT

OUTPUT

Limiter

M EQ

2. SLAP BASS [SLAP]
This effect emphasizes the low and high frequency range. It is most suitable for
chopper type play.
Display

When RATE is set to a value between 1 and 50, a sample- and-hold effect is
created with random pitch step changes. Setting the Random Pitch Mode to
"Hysteric" and using a vocal signal results in a sound like a crazed singing
robot. When RATE is set to 0, the pitch does not change, but the sound has a
special metallic ring that differs depending on when the RATE 0 setting was
chosen.
When a program was stored with the RATE 0 setting, the sound differs
depending on when the program is called up.

Rate

ROBOT Sample-and-Hold Effect

m

Category Vm SOUND

1. WAVE [WAVE]
Even without a sound source, this effect creates the powerful sound of waves.

2. TEST TONE OSCILLATOR [OSC]
This test tone can be used to tune instruments or to test other equipment.
Explanation

I 1

Parameter

I

C)isplay

Range

438442,

Explanation

2%
1

Frequency

mQ

5

Balance

BAL

0-10

Dctmnines the balance between direct sound and
oscillator tone.

L

Program Level

LVL

0-99

De~erminesthc output level.

500~l000,
2000,5000

Decormines the oscillator frequency (unit: Hz)

I

This section explains the use of the Utility mode which serves for general system
functions.

Activating the UtiIity Mode
Press the UTILITY (TYPE) key in the Play mode. This activates the Utility mode,
and a "U" appears in the left section of the display.
STUDIO DRUMS KEVB. PIANO

ACOUSIIC

numa BASS VOCAL SOUND

The Utility mode has the following three functions. With each push of the UTILITY
(TYPE) key, the unit switches to the next funclion and the display changes accordingly.
The last push of the UTILITY (TYPE) key returns the unit to the Play mode.
*
*

Sct the output level of the sound source to the normal value. Then adjust the input
sensitivity of the 9001 with the VALUE +/- keys so that the SIGNAL indicator lights
up in yellow during input signal peaks. The input sensitivity can be set in five steps,
from 1 to 5. The lower the figure, the lower the input gain.

The following settings can serve as a general guideline. Actual requirements may differ.

Calling Up Factory Preset Programs (Preset Recall)
Thc 9001 contains a ROM (rcad-only mcmory) in which all hctory prcsct progmms
are permanently storcd, using thc same numbcrs as thc uscr-configurable program
memory. Even if you have editcd a program and stored it in a certain number, the
original factory preset program for that number can bc recallcd at any time.
Press the UTILITY (TYPE) key to activate the Utility mode.
Press the UTILITY (TYPE) key once more, so that the indication "RECALL"
appears on the display.
The display example shown below rneans that thc unit is sct to recall the program in
bank numbcr l , program number 2.
ACWSllC
STUDIO DRUMS KEYB. MAN0 GUITAR BASS VOCAL SOUND

I

Use the BANK UP/DOWN keys and the PROGRAM 1 - 4 keys to select the
program you want to recall. 'l'he sound you hear is t h a t of the recalled
program,
To store a program called up from ROM in a program memory
Press the STORE kcy. The unit is now sct to thc Storc mode, and the bank numbcr
and program numbcr indication flashes. Choosc thc numbcr into which you want to
store the program and press the STORE key again. (By pressing the EDIT/CANCEL
key you can cancel the store opcraiion and rcturn thc Prcset Recall mode.) The
program from ROM is storcd in the sclccted numbcr, and the unit reverts to the Play
mode. (The storcd program is now sclectcd and its sound is hcard.)

Press STORE Key

To edit a program called up from ROM
Press the EDITICANCEL key. The 9001 reverts to the Play mode, but the program
called up from ROM is sdll active. Press the EDITICANCEL key again to edit this
program. If desired, you can later store it in the user-configurable memory.

To cancel preset recall
Press the UTILITY (TYPE) kcy twicc. The unit rcvcrts to the Play mode. In this case,
the program called up from ROM is abandoncd and the program that was selected
previously becomes active again. If you wcrc in thc process of editing that program,
your changes are still preserved.

Resetting the Entire 9001 to the Initial Condition (Initialize)
This function resets all programs and input level scttings to the original shipping
condition. Usc this option wilh carc, because all programs that you may have edited or
stored will be lost.
Press the UTILITY (TYPE) key to activate the Utility mode.
Press the UTILITY (TYPE) key two more times, so that the indication "INIT"
appears on the display.
ACOUSTIC
STUDIO DRUMS KEYB. PIANO G I J ~ A RBASS VOCAL SOUE

When wishing to go ahead with the initialize function
Prcss the STORE key once more. The indication "STORE AL" flashes on the display
and the entire unit is rcsct. Then the unit reverts to the Play mode.
When wishing to cancel the initialize function
Press the EDIT/CANCEL kcy. The unit reverts to the Fist display of thc Initialize
modc.

With the optional Foot Controller FCOl, functions such as program selection and
effect on/off switching can be carried out by foot.

Connections
Use the cable supplied with the FCOl to connect the REMOTE jack on the 9001 with
the foot controller.

Connecting the FCO1 and 9001

Because the FCOl is powered from the 9001, thcre is no need for a separate power
supply for the foot controller. Be sure to turn the 9001 off before making any
connections.

Selecting a Program
Use the BANK switch on the FCOl to select a bank number from 0 to 9.
The LED indicator on the FCOl cycles through the following indications.

The 0 - 9 indication corresponds to the bank number on the 9001. "P" indicates the
effect off (bypass) condition. If the effect is already off, "P" is skipped and the
indica~ionproceeds directly to "0" or "5".
Use the PROGRAM 1 - 4 switches on the FCOl to select the program number.
As when using the switches on the 9001, selecting the bank number does not
suffice to switch the program. The program is only switched when you press one
of the PROGRAM 1 - 4 switches.

M

Bypassing the Effect
Press the BANK switch on the FCOl several times, until the LED displays "P".
The LED starts flashing.

-

Press one of the PROGRAM 1 4 switcl~eson the FCO1. The flashing stops
and the indicator shows the previously selected bank number.

The BYPASS LED lighls up.

To cancel the bypass condition, press any PROGRAM swilch on the FCOl to select a
program. (This can be carried out also aL the 9001 .)
The 9001 can only be remote controlled by the VC01 when in the Play mode.
When the 9001 is in another mode, the LED indicator of the FCOl flashes, and
program selection or effect d o f f switching cannot be carried out.

Long stcrco ccho which diffuses into smaller delays as
the effects fades away. Idcal for unaccompanied solo
voice or instrumcnl, or for jamming with lots of
percussion - adjust dclay time to fit tcrnpo.

ECHO

A short delay setting which echoes once off to thc side
of thc audio image. Gives a double track sound to any
part. Tncrease the diffusion on sustained sources, such
as voice, for more revcrb effect.

CHORUS

Eight-voice chorus which adds high cnd luster to
ensemble sounds. Great for reclaiming favorite patches
from older synths with limited oscillators or bandwidth
or both. Time to bring 'em out of the closet!

Simulates a very large environment for rock drums,
especially useful for pumping sampled killerdrums up to
'1 1' on ~ h epic
c metal indcx.

32

Rich Strings

STRNG

Lush chorus rcverb for ensemblc sounds like choir and
strings, and for filling out electric guitar arpeggios. For
synth orchestra applications, Lry reducing the chorus
and increasing the prcdclay of the reverb.

High EQ gain and high comb filter setting simulate a small,
bright classical guitar. Limiter is set low for solo mclodic
playing.

Clean Rock

BASS

High EQ gain and low chorus and rcverb add clarity and edge
to electric bass guitar. Adjust EQ settings to customize for
pickup orientation, and try reducing rcverb to 0 for rock mixes.

Rich Fretless

BASS

Low frequencies arc boosted and chorus and reverb are turned
up for processing rrcllcss cleclric bass.

Synth B a s s

BASS

Low and high EQ gain i l d chorus add body to wimpy, single
oscillator synthesizer bass sounds. Adjust EQ for the mix.

Snappy S n a p

SLAP

Enhancer adds presencc to slap and pop elcctric bass playing
styles. Experiment with thc parametric EQ frequency to get the
right tonal sctting for thc bass and the music.

Program Name Effect Type

Comments

Rock Singer

Enhancer gives the voice a cutting presence, low chorus
amount adds body, and short reverb sctting mixes well with
other instruments. Great for band rehearsal, and a good
practical setting for voice and guitar.

Solo Voice

Rich chorus and lots of reverb make this program perfect for
unaccompanied solo voice processing. Add enhancer to
cus~omi~x:
for voice typc. Good practice setting for voice and
synth pad.

Double Track

A short slapback delay and lots of reverb make this program
useful in many lead vocal situations, as well as sax solos.
Adjust the delay time and mix LO the music.

Vocal Echo

A very general purpose solo voice sctting with high enhancer
and echo fed into h e reverb. Also works with many
ir~strumentalsources.

Soul Chord

HARM

Pitch harmony shifts one voice down a major sixth below
source, and he other down a perfect fourth creating a 1st
inversion minor chord for an all blues mood. Adjust pitch 1
and 2 for different chord.

Double Octave

HARM

Pilch harmony shifts one voice down an octave and the othcr
up an octave. B O Lvoices
~
are then heavily chorused. Filles out
sampled synth choir sounds especially well.

HARM

Pitch harmony setlings at zero delay each electronic voice
slightly so lhat there is in effect, the sound of three voices
across the stereo image. Good for backup parts. Adjust pitch
harmony balance to the music.

Sample & Hold

ROBOT

This sound effect processing is set at medium levels of pitch
mode, pitch and number of sample/hold steps. Tums any
speaker into jibber-jabbering robot, and samc sampled FX into
crazy ones. Experiment!

Zero Mode

ROBOT

The rate selting of 1 allows the user to listen to the tonality of
each step of the sample and hold circuit slowly. To lreeze the
processor at a particular timbre, change the rate setting to 0.

WAVE

The sound of endless and aperiodic waves crashing on the
shore can be useful in theater works or cinema. .. or in the
privacy of your own home. For your sleeping pleasure, adjust
the mode accordingly.